title: A case of medullary venous malformations with an arterial component coexisting with arteriovenous malformations.
abstract: We present a rare case of medullary venous malformations with an arterial component coexisting with two small arteriovenous malformations in the same area. The onset was abrupt with subcortical hematoma due to the rupture of one arteriovenous malformation in the frontal area. Single photon emission computed tomography using 99mTc-hexamethylpropyleneamine oxime showed a high-uptake area around the hematoma suggesting increased blood flow. Two types of vascular malformation coexisting in the same area support a theory of congenital malformation originating in intrauterine life.
authors.affiliation: Department of Radiology, Research Institute for Brain and Blood Vessels, Akita, Japan.
authors.forename: N
authors.initials: N
authors.lastname: Tomura
authors.forename: A
authors.initials: A
authors.lastname: Inugami
authors.forename: S
authors.initials: S
authors.lastname: Higano
authors.forename: K
authors.initials: K
authors.lastname: Uemura
authors.forename: H
authors.initials: H
authors.lastname: Hadeishi
authors.forename: N
authors.initials: N
authors.lastname: Yasui
mesh_terms: D001921:Brain / Q000098:blood supply* / Q000000981:diagnostic imaging; D002533:Cerebral Angiography; D002536:Cerebral Arteries / Q000002:abnormalities* / Q000000981:diagnostic imaging; D006801:Humans; D002538:Intracranial Arteriovenous Malformations / Q000150:complications / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D014055:Tomography, Emission-Computed; D014680:Veins / Q000002:abnormalities* / Q000000981:diagnostic imaging